fixed pca9685_servo.py example

[jvalrog]

I copied the servo sweep example from CircuitPython-Motor as it's the same example but that one has the delays in place.

The code was tested in a raspberry pi.

[jvalrog]

So apparently pylint don't like variable names (it thinks they are constants). But this is the actual file from the Motor library, so it must fail there too.

[evaherrada]

@jvalrog Hey. So basically what you're gonna want to do is take the line:

from adafruit_motor import servo

(line 12) and cut it and paste it above:

from adafruit_pca9685 import PCA9685

(line 11)

[jvalrog]

@dherrada fixed

[evaherrada]

@ladyada Ok this is passing. I don't have the hardware to test

[jerryneedell]

I ran this on a Feather M4 -- servo did its sweep.

[jposada202020]

@dherrada could we merged now this is tested. let me know thanks..

[evaherrada]

Yep!

[jposada202020]

:) thanks @dherrada and @jerryneedell

[evaherrada]

Thank you!